Polyurethane roller is a new type of polymer material
Polyurethane roller is a new type of polymer material, polyurethane has its special high wear resistance, tear resistance, high elasticity, high load and other excellent performance, with the continuous promotion and development of industrial production enterprises and civil, all walks of life to improve the production of products, the use of polyurethane material roller, to replace the traditional rubber roller or plastic roller. Polyurethane drum with its own excellent performance, will undoubtedly become the choice of production enterprises. The reason why the roller conveyor made of polyurethane roller can be widely used is because of its good thermal insulation performance.
Application field of polyurethane roller
Many application fields, especially some newly developed electronics, medical, automotive, packaging and other industries, have higher requirements for antistatic, so the development of antistatic polyurethane elastomers has become an important development direction.
What are the types of polyurethane rollers
In view of the disadvantages of poor high temperature resistance and easy hydrolysis of polyurethane rollers, the performance of polyurethane elastomers is improved by increasing the crosslinking density of elastomer molecules, increasing the degree of microphase separation and selecting raw materials such as isocyanates and chain extenders. In addition, antioxidants, heat stabilizers and some fillers are added to effectively improve the thermal stability of polyurethane elastomers.
Polyurethane rollers are made from polyisocyanates and polyether polyols or polyester polyols
Polyurethane roller is a polymer made of polyisocyanate and polyether polyol or polyester polyol or small molecule polyol, polyamine or water and other raw materials such as chain extender or crosslinking agent. By changing the type and composition of raw materials, the product form and its performance can be greatly changed, and the final product from soft to hard can be obtained. The material forms of polyurethane rollers are soft, semi-rigid and rigid foams, elastomers, paint coatings, adhesives, sealants, synthetic leather coating resins, elastic fibers, etc.
Deficiencies of polyurethane encapsulation
Polyurethane encapsulation also has certain disadvantages: large internal heat generation and general high temperature resistance. The normal use temperature range is -40~120 ℃. If long-term effects are required under high-frequency oscillation conditions or high-temperature conditions, corresponding modification measures must be taken in structural design or formulation.
Superior wear resistance of polyurethane projectile
Superior wear resistance. Especially in the presence of water, oil and other wet media working conditions, its wear resistance is often several times to several times the ordinary rubber material.
The main advantages of polyurethane projectile
A number of physical and mechanical performance indicators can be changed within a certain range through the selection of raw materials and the adjustment of the formula, so as to meet the different requirements of users for product performance.
The advantages and disadvantages of choosing polyurethane material for roller coating
Drum coating can choose different materials, such as rubber, silicone, plastic, etc., but is widely respected polyurethane material (PUR). Polyurethane elastomers have good wear resistance, usually three to five times that of rubber, and are called wear-resistant rubber. Through the correct process of integrated molding, long-term use without degumming. At the same time, oil resistance, water resistance, corrosion resistance, can be used in a variety of working environment.






